Phacelia purshii, known by the common names Miami mist,[3] scorpionweed,[4] and purple scorpionweed,[5] is a spring flowering annual forb with blue, lavender, violet, or nearly white flowers in the Boraginaceae (borage) family that is native to eastern and central North America.

[6] The inflorescence is a loose scorpioid cyme (the axis is curved like the tail of a scorpion), with 8 to 30 flowers.

Flowers are light blue, violet, lavender, or nearly white with pale centers, and they have 5 fringed lobes.

The specific epithet purshii honors the German botanist Frederick Traugott Pursh, who claimed to discover the plant.

[8] It is native to the Appalachian Mountains and adjacent regions from Alabama to Pennsylvania, with additional populations in the Tennessee/Ohio Valley, the mid-section of the Mississippi Valley (Illinois, Missouri, Arkansas) and the Great Lakes region (Ohio, Michigan, Ontario, etc.).